Sildenafil Infor Chemical name: Sildenafil (Viagra) (Steroids) CAS: 139755-83-2 Assay: 99% min. Molecular formula: C22H30N6O4S Molecular weight: 474.58 Packing: 1kg net/foil bag, 5kg/drum. Delivery: Express courier. Character: White or almost white crystalline powder, odorless, bitter astringent taste, insoluble in water and ethanol. Sildenafil Description: Sildenafil, sold as Viagra and other trade names, is a medication used to treat erectile dysfunctionandpulmonary arterial hypertension. Its effectiveness for …